/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.ignite.internal.sql.engine.framework;

import java.util.concurrent.atomic.AtomicInteger;
import org.apache.ignite.internal.sql.engine.schema.IgniteSchema;
import org.apache.ignite.internal.sql.engine.schema.IgniteSchemas;
import org.jetbrains.annotations.Nullable;

/**
 * Dummy wrapper for predefined collection of schemas with possibility to change catalog version.
 *
 * @see PredefinedSchemaManager
 */
public class VersionedSchemaManager extends PredefinedSchemaManager {
    @Nullable private final AtomicInteger ver;

    /** Constructor. */
    public VersionedSchemaManager(IgniteSchema schema, @Nullable AtomicInteger ver) {
        super(schema);

        this.ver = ver;
    }

    /** {@inheritDoc} */
    @Override
    public int catalogVersion(long timestamp) {
        return ver == null ? super.catalogVersion(timestamp) : ver.get();
    }

    /** {@inheritDoc} */
    @Override
    public IgniteSchemas schemas(long timestamp) {
        return ver == null ? super.schemas(timestamp) : new IgniteSchemas(rootSchema(), ver.get());
    }
}
